Fertilizer Synthesizer

Fertilizer Synthesizer uses Polluted Water, Dirt and Phosphorite to produce Fertilizer, as well as Natural Gas. Fertilizer is dropped in lumps of 10 kg at 50°C, which can be hotter if any input was above their minimal temperatures. Natural Gas is released at fixed 76 °C into the surroundings.

Ratios
Constantly running Synthesizer produces 72 kg of Fertilizer per cycle, which equals to 14.4 Micronutrient Fertilizer uses.

It consumes:
 * 39 kg of Dirt per cycle, almost as much as 8 Sleet Wheats (enough to feed 3 dupes).
 * 23.4 kg of Polluted Water per cycle (exactly two Lavatory uses). Pincha Pepper (the least demanding plant) requires 35 kg/cycle.
 * 15.6 of Phosphorite per cycle, which can be provided by 6.2 wild Dreckos or 1.6 tame and happy.

As can be seen, Synthesizer provides noticeable resource conservation with minuscule requirements.

Heat economy
The sum of inputs' Total Heat Capacity is bigger than the sum of outputs' THC. Which makes Synthesizer heat-destroying if input resources are warm enough. 41 °C Polluted Water and 30 °C solids are enough to breach this threshold (machine's heat output included). Heating solids is a hassle, so it is recommended to feed Synthesizer with hot water, which provides more than half of the THC anyway. With 75 °C water and 30 °C solids it will destroy ~20% of heat.

Tips

 * Synthesizer outputs at temperature above its overheat, which means that either its output materials should be quickly removed away, the building must be made from Gold Amalgam and/or cooled regularly.
 * Keeping Synthesizer in Carbon Dioxide pit will make collection of Natural Gas easier, as it will flow upwards.
 * However, dupes will have to hold their breath to collect the Fertilizer, and the Natural Gas layer can inflict the Eye Irritation debuff on them.
 * The Natural Gas output can be used to offset most of the energy requirements of the Synthesizer.
 * The output is just enough to feed a Gas Range that is cooking quality food every cycle for one or two dupes.
 * Germs in the Polluted Water are not destroyed, they are transferred to the produced fertilizer.
 * Fertilizer can be cooked into dirt, allowing potential renewable supply of dirt.
 * They can be used with Natural Gas Generators to convert Polluted Water into Power. This effect can be increased by then using Carbon Skimmers to produce more Polluted Water from the CO₂ produced by the generators.
 * Reservoirs of Polluted Water that had been around can be used to cool Metal Refineries, and then channeled to a Fertilizer Synthesizer that has been placed in a well to delete some heat. The Natural Gas that is emitted can be left to subside at the bottom of the well (which should have a Carbon Skimmer at the bottom) for easier execution of the abovementioned tip.

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